POST参数在Unity3d中始终为null

Question

我在asp.net web api2服务器上有这个代码:

[HttpPost]
    [AllowAnonymous]
    public IHttpActionResult Login(RequestLogin args)
    {
        //work
    }

我尝试使用参数从" 高级REST客户端 " 发送发送请求:

http://localhost:54382/api/Home/Login
application/json
{"Name":"asd","DeviceId":"818cd41169410e6f20ef55b2917d0e15e5cf072f"}

......它完美无缺!Login方法中的args 已满.

但如果我从Unity3d尝试这个:

UnityWebRequest www;
var url = http://localhost:54382/api/Home/Login;
string jsonObj = JsonUtility.ToJson(request.args);
Debug.Log(jsonObj); //{"Name":"asd","DeviceId":"818cd41169410e6f20ef55b2917d0e15e5cf072f"}
www = UnityWebRequest.Post(url, jsonObj);
www.SetRequestHeader("Content-Type", "application/json; charset=utf-8");
yield return www.Send();

Login方法中的args包含空值.

[Serializable]
    public class RequestLogin
    {
        public string Name;
        public string DeviceId;
    }

我打破了好几天.请帮帮我

Answer 1

将Unity升级到2017.3.0版后,我遇到了完全相同的问题.对我有用的修复是将UnityWebRequest.chunkedTransfer设置为false.我的post方法如下所示:

public static UnityWebRequest PostJson(string url, string json)
    {
        UnityWebRequest request = new UnityWebRequest(url, UnityWebRequest.kHttpVerbPOST);
        byte[] bodyRaw = new System.Text.UTF8Encoding().GetBytes(json);
        request.uploadHandler = (UploadHandler)new UploadHandlerRaw(bodyRaw);
        request.downloadHandler = (DownloadHandler)new DownloadHandlerBuffer();
        request.SetRequestHeader("Content-Type", "application/json");
        request.chunkedTransfer = false;
        return request;
    }